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Bulroc Br1 Br2 Br3 and 3inch Medium Air Pressure Down The Hole DTH Drill Hammer

Bulroc Br1 Br2 Br3 and 3inch Medium Air Pressure Down The Hole DTH Drill Hammer
DTH drilling is a percussion system driving a piston inside hammer body with up and down motion by compressed air and transmitting an intensive percussion energy to the bit to enable the drilling by crushing the rock.

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  • Bulroc Br1 Br2 Br3 and 3inch Medium Air Pressure DTH Hammer
  • Bestlink

Bulroc Br1 Br2 Br3 and 3inch Medium Air Pressure Down The Hole DTH Drill Hammer

BR1,BR2,BR3 series Bulroc DTH Hammers are designed to operate efficiently at low air pressure and medium air pressure, using BR series DTH bits.

The main features are as follows:

1. The operating air pressure are between 0.7Mpa and 1.75Mpa.

2. Valveless hammers.

3. Simple structure, easy to assemble and to disassemble, long life.

4. Higher impact frequency and faster drilling speed.

5. Lower air consumption and lower oil consumption. A hole can be drilled on the check valve to provide more efficient cutting discharge.

6. Especially suitable for quarrying.
 

Length  (no bit) Weight (no bit) External  diameter Bit shank Hole range Connection thread
760mm 10.00kg Φ54mm BR1 Φ64-Φ76 RD40
BOX
Working Pressure Impact rate at 1.4MPa Recommended rotation speed Air consumption
0.7MPa 1.0MPa 1.4MPa
0.7-1.75MPa 27Hz 25-40r/min 1.5m3/min 2.5m3/min 3.0m3/min

 

Length  (no bit) Weight (no bit) External  diameter Bit shank Hole range Connection thread
880mm 14.50kg Φ62mm BR2 Φ70-Φ90 RD50
BOX
Working Pressure Impact rate at 1.4MPa Recommended rotation speed Air consumption
0.7MPa 1.0MPa 1.4MPa
0.7-1.75MPa 25Hz 25-40r/min 2.5m3/min 4.0m3/min 5.0m3/min

 

Length  (no bit) Weight (no bit) External  diameter Bit shank Hole range Connection thread
889mm 26.00kg Φ82mm BR3 Φ90-Φ110 API 2 3/8" Reg
Working Pressure Impact rate at 1.4MPa Recommended rotation speed Air consumption
0.7MPa 1.0MPa 1.4MPa
0.7-1.75MPa 25Hz 25-40r/min 4.0m3/min 6.0m3/min 8.0m3/min

DTH HAMMER 2

drill bits


application area

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Bestlink Factory

Xiamen Bestlink Factory Co., Ltd  is  committed  to  provide  the  best  drilling  and  cutting machine,  tools and accessories products in marble and granite stone quarrying,  as well as in civil engineering application, especial demolition project. it is now a leading manufacturer of cutting and drilling equipment for the extraction of marble, granite  and ornamental stones in china.  

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